Build comprehensive monitoring capabilities for Spring Boot Microservice using Spring Boot Actuator, Micrometer and Prometheus. Introduction Observability, which is comprised of monitoring, logging, tracing, and alerting aspects, is an important architectural concern when using microservices and event-driven architecture (EDA) styles, primarily because: A large number of deployments require automation and centralization…

What is CORS? Cross-Origin Resource Sharing (CORS) is an HTTP-header based mechanism that allows a server to indicate any other origins (domain, scheme, or port) than its own from which a browser should permit loading of resources. For example, web app on domain http://domaina.com …

The term algorithm is very familiar in the field of computer science and it acquires an important place in all computing systems. An algorithm is any well-defined set of computational procedures that takes some value, or set of values, as input and produces some values, or set of values as…

This article focuses on plain GraphQL functionality. What is GraphQL? GraphQL is a query language that provides a complete and understandable description of how to load data from a server. GraphQL enables declarative data fetching where a client can specify exactly what data it needs from an API. GraphQL vs. REST REST has been a popular…

This article focuses on basic overview of Neo4j and Graph Database. What is Graph database? Graph database uses graph structures with nodes, edges and properties to represent and store data. The graph relates data items to a collection of nodes and edges, where edges represent relationships between nodes. …